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A number of questions have inspired marine ecologist Stuart Sandin to head to the coral reefs of the Line Islands . Sandin works at the Scripps Institution of Oceanography at the University of California,...

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Is it lights out for corals once they have experienced a bleaching event? Not necessarily. This photo shows a coral reef near Bocas del Toro, Panama that is in the process of recovering from a mass bleaching event that occurred...

On average, Arctic sea ice has decreased by four percent per decade since the late 1970s. But at the same time, Antarctic ice has increased by 1 percent. Scientists are investigating why . More about...

A public service announcement uses a dramatic example to emphasize that ocean fish aren’t as big as they used to be. Find out more about the decline in the ocean's top -- and often large -- predators...

This graph of the Arctic sea ice coverage shows how close the year 2011 is to reaching a record-low . The graph contains data through September 7, 2011. The National Snow and Ice Data Center , which...

Cashes Ledge is a wild, special place in the heart of the Gulf of Maine. This underwater mountain range is home to a great diversity of life, with colors typically associated with a coral reef rather...

Last September, the Citizens of the Sea blog series brought you a story of doom and gloom from the reefs of Bocas del Toro, Panama. That is the time of year we typically study -- and celebrate -- the...